In court, the prosecution revealed graphic details about how Noah met his death.

According to officials, Pope was alone with the boy in the apartment where he lived with the child's mother, when the child became, in Pope's words, fussy.

Police said they responded to a home on High Street Friday afternoon and found the child in distress. He later died at the hospital.

"This is not an accident. This is not an accidental smothering. This defendant described to investigators very methodically that he had wrapped this child up in a number of blankets, tied a rope around those blankets and when that didn't silence the child ... he put a sheet over that child. He put a pillow on top of the child at that point because he could still hear that child crying and screaming," said Geoff Ward, attorney from the New Hampshire State Attorney General's Office.

The prosecutor said when that didn't work, he then placed a 20-pound duffel bag on the child and left the apartment for, in Pope's words, five minutes.

When he returned, he found the child was not breathing and called 911.

After emergency officials arrived, Pope allegedly lied about what had happened, telling them that Noah had choked on something.

Prosecutors said that Pope also tried to conceal evidence by putting away the blanket and other items before police arrived.

The child's mother was not present in the courtroom Monday, but there were some relatives of the biological father who wept as the details were revealed.

Pope's bail was set at $250,000 cash. If he manages to make bail, he will need to wear an ankle monitor device.

"In terms of additional charges, with the investigation ongoing or any change in the level of charging, that's something we are constantly thinking about and reevaluating as the investigating progresses," Ward said, adding that it could change when the grand jury convenes at a later date.